For the generic equilibrium HA (aq) ⇌ H + (aq) + A - (aq), which of these statements is true? For the generic equilibrium, which of these statements is true? The equilibrium constant for this reaction changes as the pH changes. If you add the soluble salt KA to a solution of HA that is at equilibrium, the concentration of A - would decrease. If you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase. If you add the soluble salt KA to a solution of HA that is at equilibrium, the concentration of HA would decrease.

Question

Chemistry

Karsyn Hurley

30 December, 09:09

For the generic equilibrium HA (aq) ⇌ H + (aq) + A - (aq), which of these statements is true? For the generic equilibrium, which of these statements is true? The equilibrium constant for this reaction changes as the pH changes. If you add the soluble salt KA to a solution of HA that is at equilibrium, the concentration of A - would decrease. If you add the soluble salt KA to a solution of HA that is at equilibrium, the pH would increase. If you add the soluble salt KA to a solution of HA that is at equilibrium, the concentration of HA would decrease.

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Answers (1)

Know the Answer?

Nayeli Daniel · Answer 1

The correct answer is The equilibrium constant for this reaction changes as the pH changes.

Explanation:

The equilibrium constant of a reaction depends of pH and viceverca. There is a equation that link pH with equilibrium constant Ka (for assumption). The equation is given below,

pH=pKa+log[A-/HA]

where[A-] is the concentration of conjugate base and [HA] is the concentration of conjugate acid.